Reluctant Conqueror

Yes, there are blood stains on my hands
but I wish the history books understood
that I had not meant to start a war-
my nails were sharper than I knew
and my strength greater than expected
truly, truly it was not my intention
to draw first blood and lay siege
but when backed into a corner
anyone can become a warrior, a leader
and though I left the world in ashes
I doubt you would have done differently.